Fire extingguisher



Aug. 21, 1934.

J. S. NE LSON ET AL FIRE- EXTINGUISHER Filed Aug. 19, 19152 I'll.

Fig" uRE &

3o Figure 2 is a section on line 2-2 of Figure l. nector at 33 theresilient element throws the .51

Patented Aug. 21, 1934 1,970,863

l jt 'i'jj. FFICE FIRE EXTINGUISHER Julius S. Nelson and Paul A. Stover,San Jose, Calif.

Application August 19, 1932, Serial No. 629,442

10 Claims. (61. 16926) NITE The present invention relates particularlyto ends of a short bar 29, the said bar being formed that type of fireextinguisher wherein a frangible of two parts connected by a suitablefusible container of fire extinguishing material is shatmaterial at 21and, of course, holding the memtered by means rendered operative by heatgenhere under tension.

erated by the fire to be extinguished, reference Disposed within thecontainer or housing, and 60 being made to the application of Juliusresting upon the element 7, is a frangible re- Nelson, Serial No.683386, filed April 7, 1932. ceptacle for fire extinguishing liquid, as22.

In a device of the type indicated it is desirable 3 When the bar 20separates through the fusing to have the liquid receptacle disposedwithin a of the connecting medium, the resilient members containerhaving an open end through which the l2-13 are released and throw theirheads 14 15 6, liquid may be discharged, and it is one object throughthe openings 8-9 and against the reof the invention to provide means forbreaking ceptacle 22 with sufiicient force to shatter the the receptaclewithin the container. same and permit the liquid therein to flow down-It is another object of the invention to provide wardly through openings8-9 and thence out l5 breaker means that constitutes a single unitthough the spreader l. i that may be quickly and easily positioned inan: In the embodiment shown in Figures 3 and 4, removed from thecontainer. the container 23 is fitted with a distributor 24 It is stillanother object to provide breaker upon which rests an inverted cupshaped elemeans that functions as a support for the rement 25. The topof element 25 has a central 2o ceptacle in the container. opening formedtherein as at 26 through which It is also an object of the invention toproprojects a protuberance 27 on receptacle 28, vide breaker means ofthe character indicated Struck inwardly from one side of the elementthat will be economical to manufacture, simple 25 are fingers 29, thesefingers clasping and in form and construction, light, strong, durable,holding a resilient member 30 bent back upon 25 and highly ehicient inits practical application. itself as at 31 and with its ends secured to-8.

In the drawing: gether by any suitable substance fusible at a Figure lis a sectional view of a device emgiven temperature. On the end of thebentbodying our invention, partly in elevation and back portion of thismember is a head 32. In part broken away. this embodiment when the hotair fuses the con- Figure 3 is a sectional view of a device emhead 32forwardly against the protuberance 27 bodying another form of theinvention, partly which is thereby shattered thereby releasing the inelevation, and part broken away. liquid contents of the receptacle.

Figure 4 is a section on line ll of Figure 3. It is to be understood, ofcourse, that while 5 In the embodiment of the invention shown in we haveherein shown and described but two 9. the (Figures 1 and 2, a containeris indicated by specific embodiments of the invention, changes thereference 1 closed at its top and. provided in form, construction, andmethod of assembly with supporting means at 2, its lower end being andoperation may be made within the scope of open, and having an internalannular groove the appended claims. 4 formed therein as at 13. We claim:5

At l is shown a spreader discharge plate 1. The combination of acontainer having a having an upturned side edge as at 5 provided lowerdischarge qu d di ibuting means with bosses 6 adapted to engage thegroove 3 disposed in said end, a breaker device slidably whereby tosecurely hold this element in place. engaging the container and disposedupon and An inverted cup shaped element is shown at uppfl ed y thedistributing means a frangible 1 7, this element being of such adiameter that ceptac e for fi ti g li l liquid d sposed it will slidesnugly into the container 1, its edge in the container and suppo ted bysaid breaker resting on the upper edge of the spreader 4 device, andsaid breaker device being constructed when the two parts are inposition. In the top and arranged to b eak the ran ible Container ofthis element are formed symmetrically diswhen Subjected to apredetermined p ratu e,

posed openings as 3 9 and Sockets 10 and and to pass the released liquidto the dis- In the sockets 10-11 are mounted resilient triblltingmeansmembers 12-43 fitted th heads 14. 15 h 2. The combination of acontainer having an free ends of these members are provided with openlower end, liquid distributor means mount- 55. tongues 16-17 engagingholes 18-19 in the ed in said end, a frangible receptacle for fireextinguishing material disposed in the container, and a breaker devicemounted in the container in operative relation to the receptacle, thesaid device including an apertured plate disposed beneath thereceptacle, a pair of resilient hammers mounted on the plate and tendingnormally to operate through the apertures, and heat releasable meansconnecting the hammers to normally hold them in an inoperative position.

3. A breaker device of the character described comprising a memberadapted to underlie and support a receptacle for fire extinguishingliquid and having oppositely disposed orifices formed therein, a pair ofresilient hammers mounted therein and operative through said orifices,and heat releasable means connecting the hammers to normally hold themin an inoperative position.

4. In combination, a container having a lower discharge end, a frangiblereceptacle for fire extinguishing material mounted therein, supportingmeans for the receptacle disposed within the container and having heatresponsive breaker means mounted thereon in operative relation to thereceptacle, a liquid distributor mounted in the discharge end of thecontainer to support the supporting means for the receptacle and saidsupporting meansbeing constructed and arranged to pass the releasedliquid to the distributing means.

5. In combination, a container having a lower discharge end, a frangiblereceptacle for fire extinguishing material mounted therein, an invertedcup-shaped element mounted in the container to support the receptacle,heat responsive breaker means mounted on said element in operativerelation to the receptacle, a distributor member mounted in thedischarge end of the container to support said cup-shaped element andsaid inverted cup-shaped element being constructed and arranged to passthe fire extinguishing material from the receptacle to the distributor.1 a

6. In combination, a container having a lower discharge end, a frangiblereceptacle for fire extinguishing material mounted therein, an invertedcup-shaped elementmounted in the container to support the receptacle,heat responsive breaker means mounted on said element in operativerelation to the receptacle, a cup-shaped distributor member slidablyinserted in said container to support the inverted cup-shaped element,means for securing the distributor member in the container and saidinverted cupshaped element being constructed and arranged to pass thefire extinguishing material from the receptacle to the distributormember.

7. In combination, a container having a lower discharge end, afrangible'receptacle for fire extinguishing material slidably mountedtherein, and apertured element slidably mounted in the container tosupport the receptacle, heat responsive breaker means mounted on saidelement in operative relation to the receptacle and normally tending tooperate through the apertures, and supporting means for the aperturedelement detachably mounted in the container said means comprising adistributor plate arranged below said element.

8. In combination, a container having a lower discharge end, a frangiblereceptacle for fire extinguishing material inserted therein, anapertured element inserted in the container to support the receptacle,heat responsive breaker means mounted on said element in operativerelation to the receptacle and normally tending to operate through theapertures, and supporting means for the apertured element detachablyinserted in the container, said means comprising a istributor platearranged below said element.

9. A breaker device of the character described comprising a memberadapted to underlie a frangible receptacle for fire extinguishing material and having openings therein, hammers mounted thereon and normallytending tooperate through the openings, and means connected to the freeends of the hammers to normally hold them in an inoperative position.

10. Ihe structure of claim 9 characterized by said hammers havingresilient stems.

JULIUS SIG NELSON. PAUL A. STOVER.

